package com.yupi.yupicturebackend.config;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.springframework.boot.jackson.JsonComponent;
import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

/**
 * Spring MVC Json 配置
 */
@JsonComponent
public class JsonConfig {

    /**
     * 添加 Long 转 json 精度丢失的配置
     */
    @Bean
    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        SimpleModule module = new SimpleModule();
        module.addSerializer(Long.class, ToStringSerializer.instance);
        module.addSerializer(Long.TYPE, ToStringSerializer.instance);
        objectMapper.registerModule(module);
        return objectMapper;
    }
//    @Bean
//    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
//        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
//
//        // 防止 Long 类型精度丢失
//        SimpleModule module = new SimpleModule();
//        module.addSerializer(Long.class, ToStringSerializer.instance);
//        module.addSerializer(Long.TYPE, ToStringSerializer.instance);
//        objectMapper.registerModule(module);
//
//        // 解决Lombok反序列化问题
//        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
//        objectMapper.configure(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES, false);
//
//        return objectMapper;
//    }

}